/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.iotdb.db.utils.sync;

import org.apache.iotdb.commons.exception.sync.PipeException;
import org.apache.iotdb.commons.exception.sync.PipeSinkException;
import org.apache.iotdb.commons.sync.pipe.PipeInfo;
import org.apache.iotdb.commons.sync.pipe.TsFilePipeInfo;
import org.apache.iotdb.commons.sync.pipesink.IoTDBPipeSink;
import org.apache.iotdb.commons.sync.pipesink.PipeSink;
import org.apache.iotdb.confignode.rpc.thrift.TCreatePipeReq;
import org.apache.iotdb.confignode.rpc.thrift.TPipeSinkInfo;
import org.apache.iotdb.db.mpp.plan.statement.sys.sync.CreatePipeSinkStatement;
import org.apache.iotdb.db.mpp.plan.statement.sys.sync.CreatePipeStatement;
import org.apache.iotdb.db.sync.sender.pipe.Pipe;
import org.apache.iotdb.db.sync.sender.pipe.PipeSinkFactory;
import org.apache.iotdb.db.sync.sender.pipe.TsFilePipe;

import java.util.Map;

public class SyncPipeUtil {

    public static PipeSink parseCreatePipeSinkStatement(
            CreatePipeSinkStatement createPipeSinkStatement) throws PipeSinkException {
        PipeSink pipeSink;
        try {
            pipeSink =
                    PipeSinkFactory.createPipeSink(
                            createPipeSinkStatement.getPipeSinkType(), createPipeSinkStatement.getPipeSinkName());
        } catch (UnsupportedOperationException e) {
            throw new PipeSinkException(e.getMessage());
        }

        pipeSink.setAttribute(createPipeSinkStatement.getAttributes());
        return pipeSink;
    }

    public static PipeInfo parseCreatePipeStatementAsPipeInfo(
            CreatePipeStatement createPipeStatement, long pipeCreateTime) throws PipeException {
        boolean syncDelOp = false;
        for (Map.Entry<String, String> entry : createPipeStatement.getPipeAttributes().entrySet()) {
            String attributeKey = entry.getKey().toLowerCase();
            if ("syncdelop".equals(attributeKey)) {
                syncDelOp = Boolean.parseBoolean(entry.getValue());
            } else {
                throw new PipeException(String.format("Can not recognition attribute %s", entry.getKey()));
            }
        }

        return new TsFilePipeInfo(
                createPipeStatement.getPipeName(),
                createPipeStatement.getPipeSinkName(),
                pipeCreateTime,
                createPipeStatement.getStartTime(),
                syncDelOp);
    }

    /**
     * parse PipeInfo to Pipe, ignore status
     */
    public static Pipe parsePipeInfoAsPipe(PipeInfo pipeInfo, PipeSink pipeSink)
            throws PipeException {
        if (pipeInfo instanceof TsFilePipeInfo) {
            return new TsFilePipe(
                    pipeInfo.getCreateTime(),
                    pipeInfo.getPipeName(),
                    pipeSink,
                    ((TsFilePipeInfo) pipeInfo).getDataStartTimestamp(),
                    ((TsFilePipeInfo) pipeInfo).isSyncDelOp());
        } else {
            throw new PipeException(String.format("Can not recognition pipeInfo type"));
        }
    }

    /**
     * parse TPipeSinkInfo to PipeSink
     */
    public static PipeSink parseTPipeSinkInfoAsPipeSink(TPipeSinkInfo pipeSinkInfo)
            throws PipeSinkException {
        if (pipeSinkInfo.getPipeSinkType().equals(PipeSink.PipeSinkType.IoTDB.name())) {
            PipeSink pipeSink = new IoTDBPipeSink(pipeSinkInfo.getPipeSinkName());
            pipeSink.setAttribute(pipeSinkInfo.getAttributes());
            return pipeSink;
        } else {
            // TODO(ext-pipe): parse TPipeSinkInfo to external pipe sink
            throw new UnsupportedOperationException();
        }
    }

    /**
     * parse TPipeInfo to PipeInfo
     */
    public static PipeInfo parseTCreatePipeReqAsPipeInfo(TCreatePipeReq pipeInfo, long pipeCreateTime)
            throws PipeException {
        boolean syncDelOp = false;
        for (Map.Entry<String, String> entry : pipeInfo.getAttributes().entrySet()) {
            String attributeKey = entry.getKey().toLowerCase();
            if ("syncdelop".equals(attributeKey)) {
                syncDelOp = Boolean.parseBoolean(entry.getValue());
            } else {
                throw new PipeException(String.format("Can not recognition attribute %s", entry.getKey()));
            }
        }

        return new TsFilePipeInfo(
                pipeInfo.getPipeName(),
                pipeInfo.getPipeSinkName(),
                pipeCreateTime,
                pipeInfo.getStartTime(),
                syncDelOp);
    }
}
